charts are not pulling data

hello - i have move to a new server with php 7.2 - i see that charts are returning blank pages .
chart link :
http://5.189.142.207/crewexpress/test/user_vessel_tab_Chart_chart.php
page have connection with table an i see no errors .
data link :
http://5.189.142.207/crewexpress/test/user_vessel_tab_list.php
Is something you can assist me to resolve it quickly i have spent a number of hours on that thanks in advance.
i use phprunner 9.8